Publications
1985. SEES—A Software testing Environment Support System. IEEE Transactions on Software Engineering. SE-11(4):355-366.
1984. An introduction to PSQL: A pictorial structured query language. Proc. IEEE Workshop on Visual Languages. :77-87.
1985. Direct spatial search on pictorial databases using packed R-trees. ACM SIGMOD Record. 14:17-31.
1993. ADMS: a testbed for incremental access methods. IEEE Transactions on Knowledge and Data Engineering. 5(5):762-774.
1984. GDDT--A graphical design and documentation tool for software development. Computers & Graphics. 8(3):309-323.
1988. An efficient pictorial database system for PSQL. IEEE Transactions on Software Engineering. 14(5):639-650.
1991. A pipeline N-way join algorithm based on the 2-way semijoin program. IEEE Transactions on Knowledge and Data Engineering. 3(4):486-495.
2009. Conceptual modeling: past, present and the continuum of the future. Conceptual Modeling: Foundations and Applications. :139-152.
1975. Using semantic networks for data base management. Proceedings of the 1st International Conference on Very Large Data Bases. :144-172.
1986. Principles and techniques in the design of ADMS+((advanced data-base management system)). Computer. 19:19-23.
1999. The active MultiSync controller of the cubetree storage organization. ACM SIGMOD Record. 28(2):582-583.
1983. A Relational Database to Support Graphical Design and Documentation. Databases for Business and Office Applications, Database Week. :135-149.
1982. View indexing in relational databases. ACM Transactions on Database SystemsACM Trans. Database Syst.. 7(2):258-290.
1983. A self-describing meta-schema for the RM/T data model. IEEE Workshop On Languages for Automation, IEEE Computer Society Press.
1989. Lessons learned from the ACM hypertext on hypertext project. Proceedings of the second annual ACM conference on Hypertext. :385-386.
2012. Dynamic changes in motivation in collaborative citizen-science projects. Proceedings of the ACM 2012 conference on Computer Supported Cooperative Work. :217-226.
2011. From slacktivism to activism: participatory culture in the age of social media. Proceedings of the 2011 annual conference extended abstracts on Human factors in computing systems. :819-822.
2007. Combining outputs from multiple machine translation systems. Human Language Technologies 2007: The Conference of the North American Chapter of the Association for Computational Linguistics; Proceedings of the Main Conference. :228-235.